Effect of flurprimidol and benzyladenine on growth and flowering of calla lily (Zantedeschia Spreng.) cultivated in pots

Summary.

Effect of flurprimidol used directly into root and benzyladenine used for rhizomes soaking on growth and flowering of two Zantedeschia cultivars was evaluated: ‘Pink Pimpernel and ‘Mango’. Plants bloomed more abundantly after application of benzyladenine and flurprimidol in compare with control plants. The greatest number of flowers was noticed after rhizomes soaking in solution of benzyladenine connected with plants watering solution of flurprimidol in concentration of 112.5 mg·dm-3. Flurprimidol and also benzyladenine inhibited growth of peduncles, but had no effect on length of spathes. The greater number of leaves was noticed after application of benzyladenine in ‘Pink Pimpernel’ cultivar, except combination with benzyladenine in concentration of 100 mg·dm-3 and flurprimidol in concentration of 75.0 mg·dm-3. Cultivar ‘Pink Pimpernel’ had shorter petioles, more rounded leaf blades and higher leaf greenness index in response of benzyladenine and benzyladenine with retardant. Flurprimidol had stimulating effect on the number of leaves and benzyladenine inhibited this feature in ‘Mango’ cultivar. More rounded leaf blades were noticed only in plants of ‘Mango’ cultivar treated with retardant in concentration of 112.5 mg·dm-3.